Hair clipper



FIG. 1 is a perspective view of a hair clipper showing my new design, the broken lines showing the human form being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view of the hair clipper;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view of the hair clipper; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a hair clipper, as shown and described. 